As cliched and asinine as it sounds...I suggest you play more. Place your chess books on the shelf, close your chess programs and submerge yourself in games. I think people study too hard, and forget their real-life playing experience.
Certainly study. But I found my biggest improvement in chess when I'd play 5 or so chess games a day. By playing a lot, I think you're more apt to "raise to the next peak."
I started playing chess about 2 months ago after a long, long layoff from casual chess. At first my playing got better rapidly. Now it seems as if I'm stuck in a rut and can't get any better. In fact, it almost seems that in some ways my game has a bit deteriorated.
On freechess.org, I'm about 1150.
Ideas?
What should I do at this stage?
I have Chessmaster 9000 and 10th editions; I have Chess Mentor and Chess Position Trainer; I have Chess Genius, and Hiarcs for the Palm pilot; and I have about 40 chess electronic books and 20 normal books - including about 8 problem/puzzle books.
Perhaps I've buried myself in so much stuff, I don't know what to do next.
Frank